Compact floribunda rose plant named ‘Poulcas033’

ABSTRACT

A new garden rose plant of the compact floribunda class which has abundant, yellow flowers and attractive foliage. This new and distinct variety has shown to be uniform and stable in the resulting generations from asexual propagation.

Botanical designation: Rosa hybrid.

Variety denomination: ‘Poulcas033’.

SUMMARY OF THE INVENTION

The present invention constitutes a new and distinct variety of garden rose plant which originated from a controlled crossing between the female seed parent, an unnamed seedling, and the male pollen parent, an unnamed seedling.

The two parents were crossed during the summer of 2001 and the resulting seeds were planted in a controlled environment in Fredensborg, Denmark. The new variety, named ‘Poulcas033’, originated as a single seedling from the stated cross.

The new variety may be distinguished from its female seed parent primarily by flower color. The seed parent has pink flowers while the new variety has light yellow flowers.

The new variety may be distinguished from its male pollen parent primarily by flower color. The pollen parent has pink flowers while the new variety has light yellow flowers.

The objective of the hybridization of this rose variety was to create a new and distinct variety for garden use with unique qualities, such as:

-   -   1. Uniform and abundant yellow flowers;     -   2. Vigorous, but compact growth when propagated both as a budded         rose and on its own roots;     -   3. Exceptional disease resistance.     -   4. Strong perfume.

This combination of qualities is not present in previously available commercial cultivars of this type, known to the inventor, and distinguish ‘Poulcas033’ from all other varieties of which we are aware.

As part of the rose development program, Mogens N. Olesen germinated the seeds from the aforementioned hybridization during winter of 2001 and conducted evaluations on the resulting seedlings in a controlled environment in Fredensborg, Denmark. ‘Poulcas033’ was selected in the spring of 2002 by the inventor as a single plant from the progeny of the aforementioned hybridization.

Asexual reproduction of ‘Poulcas033’ by traditional budding and rooted cuttings was first done by Mogens N. Olesen in the nursery in Fredensborg, Denmark in July, 2002. This initial and other subsequent asexual propagations conducted in controlled environments have demonstrated that the characteristics of ‘Poulcas033’ are true to type and are transmitted from one generation to the next.

BRIEF DESCRIPTION OF THE DRAWING

The accompanying color illustration shows as true as is reasonably possible to obtain in color photographs of this type, the typical characteristics of the buds, flowers, leaves, and stems, of ‘Poulcas033’. Specifically illustrated in the drawing are:

FIG. 1; Open flowers and flower buds;

FIG. 2; Petals detached, sepals, and peduncle with flower parts;

FIG. 3; Leaves and stems; and

FIG. 4; Flowering branch.

DETAILED DESCRIPTION OF THE VARIETY

The following is a description of ‘Poulcas033’, as observed in its growth in in a field nursery in Benton county, Oreg. Observed plants are 3 years of age, and were grown on Rosa multiflora understock. Color references are made using The Royal Horticultural Society (London, England) Colour Chart, 2001, except where common terms of color are used.

For a comparison, several physical characteristics of the rose variety ‘Poulcas025’, U.S. Plant Pat. No. 18,499 are compared to ‘Poulcas033’ in Chart 1.

CHART 1 ‘Poulcas033’ ‘Poulcas025’ Flower color, Yellow Group 11D with Yellow Group 4B at general tonality intonations of Yellow- center with Yellow Orange Group 16B. Group 4D at the periphery. Flower Diameter 110 to 130 mm when open. 20 mm. Scent Strong perfumed scent, Medium floral scent. similar to licorice or anise.

FLOWER AND FLOWER BUD

-   Blooming habit: Continuous. -   Flower bud:     -   -   Size.—Upon opening, 30 mm in length from base of receptacle             to end of bud. Bud diameter is 18 mm.         -   Bud form.—Ovoid.         -   Bud color.—As sepals unfold, petals are Green-Yellow Group             1C with intonations of Orange-Red Group N34A.         -   Sepal inner surface.—Color: Yellow-Green Group 145B. At             margins, sepals are Yellow-Green Group 147B. Weak             anthocyanin the color of Greyed-Purple Group 184C. Surface:             Medium pubescence observed.         -   Sepal outer surface.—Color: Yellow-Green Group 144A.             Anthocyanic pigments the color of Greyed-Red Group 181A             observed. Texture: Smooth.         -   Sepal shape.—Apex: Cirrhose. Base: Flat at union with             receptacle.         -   Sepal margin.—Margins have strong weak foliaceous appendages             on three of the five sepals.         -   Sepal size.—30 mm long by 11 mm wide.         -   Receptacle.—Texture: Smooth. Shape: Campanulate. Size: 10 mm             tall by 10 mm wide. Color: Yellow-Green Group 144A.             Anthocyanic pigments the color of Greyed-Purple Group 183C             observed.         -   Peduncle.—Length: 80 to 130 mm. Diameter: 3 to 4 mm. Color:             Yellow-Green Group 144B with moderate anthocyanic pigments             Greyed-Purple Group 183B. Surface: Smooth.         -   Pedicel.—Surface: Somewhat rough with many stipitate glands.             Length: 40 to 44 mm on average. Diameter: 3 to 4 mm on             average. Color: Yellow-Green Group 144B with strong to             moderate anthocyanic pigments the color of Greyed-Purple             Group 184A observed. Strength: Strong. -   Flower bud development: Flower buds are borne in a corymb of 3 to 5     flower buds per flowering stem. -   Flower bloom:     -   -   Fragrance.—Strong perfumed scent, similar to licorice or             anise.         -   Duration.—The blooms have a duration on the plant of             approximately 10 days. Petals fall cleanly away from plant             after flowers have fully matured.         -   Size.—Flower diameter is 110 to 130 mm when open. Flower             depth is 50 mm.         -   Flower shape.—When flowers are opening, the shape is             generally a classic hybrid tea. Afterwards, the blooms open             fully becoming rosettes with many petals packed into             sections.         -   Shape of flower, side view.—Upon opening the upper portion             is flat. The lower portion is flat. -   Petalage: Under normal conditions, flowers have 100 petals total, 30     on average of which are petaloids. -   Petal color:     -   -   Upon opening, outer petals.—Upper surface: Yellow Group 11D.             Yellow Group 9A splashed at the basal zone becoming Yellow             Group 10A at the middle zone. There are light intonations of             Red Group 38C at the petal margin. Lower surface: Yellow             Group 11D. Yellow Group 13C splashed at the basal zone and             middle zone. Weak intonations of Red Group 38C at margins.         -   Upon opening, inner petals.—Upper surface: Yellow Group 12D.             Yellow 12A at basal zone. Lower surface: Yellow 12B at basal             and middle zone. Yellow-Orange Group 19C at marginal zone.         -   After opening, outer petals.—Upper surface: White Group 155B             blended with Green-White Group 157D at middle zone. Lower             surface: White Group 155B blended with Green-White Group             157D at middle zone. No other distinctive coloration at the             petal base observed.         -   After opening, inner petals.—Upper surface: Yellow Group 9A             at basal zone. Yellow Group 12C at middle zone. Yellow Group             11B at margin. Lower surface: Yellow Group 13C at basal             zone. Yellow Group 12C at middle zone. Yellow Group 11D at             margin.         -   Basal petal spots, after opening.—Upper surface: Yellow             Group 9B. Lower surface: Yellow Group 12B. -   General tonality: On open flower Yellow Group 11D with intonations     of Yellow-Orange Group 16B. General tonality changes to Yellow Group     11D with intonations of Yellow Group 12B after a period of 5 to 7     days. -   Petals:     -   -   Petal reflex.—Weakly reflexed.         -   Margin.—Entire and uniform. Weak undulations of margin             observed.         -   Shape.—Generally broad elliptic. Apex shape: Rounded. Base             shape: Rounded.         -   Size.—Outer petals are 55 mm long by 60 mm wide. Inner             petals are 30 mm long by 25 mm wide.         -   Texture.—Smooth.         -   Thickness.—Average. -   Petaloids:     -   -   Quantity.—30 on average.         -   Shape.—Elliptic. Acute at the apex and base.         -   Color.—Upper Yellow Group 12A. Lower Yellow Group 13B.         -   Size.—30 mm (l)×20 mm (w). -   Reproductive organs:     -   -   Pollen.—None observed.         -   Anthers.—Size: 2 mm in length. Color: Yellow-Orange Group             14B. Quantity: 70 on average.         -   Filaments.—Color: Yellow-Orange Group 14B. Length: 6 mm.         -   Pistils.—Length: 7 mm. Quantity: About 80.         -   Stigmas.—Superior in location relative to the length of the             filaments and the height of the anthers. Color:             Greyed-Yellow Group 160C.         -   Styles.—Color: Red Group 47A.         -   Hips.—None observed.

PLANT

-   Plant growth: Upright and bushy. When grown as a budded field grown     plant on Rosa multiflora understock, the average height of the plant     is 70 cm and the average width is 70 cm. -   Stems:     -   -   Color.—Juvenile growth: Yellow-Green Group 144C with             anthocyanic intonations of Greyed-Orange Group 174A. Mature             growth: Yellow-Green Group 144B.         -   Length.—On average, canes are 45 cm from the base of the             plant to the flowering portion.         -   Diameter.—6 to 8 mm.         -   Internodes.—On mature canes, there is an average distance of             50 mm between nodes.         -   Surface texture.—Young wood: Smooth. Older wood: Smooth. -   Prickles:     -   -   Incidence.—5 to 11 prickles per 10 cm of stem.         -   Size.—Average length of prickles on mature stems is 8 mm.         -   Shape.—Concave.         -   Color.—Juvenile prickles: Greyed-Red Group 182A. Mature             prickles: Greyed-Red Group 181A. -   Plant foliage: Normal number of leaflets leaves in middle of the     stem: 5 leaflets.     -   -   Compound leaf.—180 mm (l)×130 (w).         -   Quantity.—3 leaves per 10 cm of stem on average.         -   Color of mature foliage.—Upper side: Yellow-Green Group             146A. Lower side: Yellow-Green Group 146B.         -   Color of juvenile foliage.—Upper side: Yellow-Green Group             144A. Lower side: Yellow-Green Group 144B. Anthocyanin:             Greyed-Purple Group 183B at the margins and generalized             throughout the juvenile leaflets. -   Plant leaves and leaflets:     -   -   Stipules.—Size: 35 mm in length. Quantity: 2 per compound             leaf. Shape: Linear, slightly broad based with outward             extending apices. Margins: Many stipitate glands. Color:             Yellow-Green Group 144B.         -   Petiole.—Length: 55 mm on average. Diameter: 2 mm.         -   Upper surface.—Color: Greyed-Orange Group 174A.             Observations: Numerous stipitate glands and prickles             observed.         -   Lower surface.—Color: Yellow-Green Group 144B.         -   Rachis.—Length: 55 mm on average. Upper surface:             Greyed-Orange Group 174A. Observations: Numerous stipitate             glands and prickles observed.         -   Lower surface.—Color: Yellow-Green Group 144B.         -   Leaflet.—Edge: Doubly Serrated. Size: The terminal leaflet             on normal leaves is 70 to 15 mm in length by 45 to 50 mm             wide. Shape: Generally elliptic to orbicular. Base: Rounded.             Apex: Caudate. Texture: Smooth. Thickness: Above average.             Arrangement: Odd pinnate. Venation: Reticulate. Glossiness:             Moderately glossy. -   Disease resistance: Above average resistance to powdery and downy     mildew, rust, black spot, and Botrytis under normal growing     conditions in Benton county, Oreg. -   Cold hardiness: The variety is tolerant to USDA Cold Hardiness Zone     6. -   Heat tolerance: The variety has been found to be suitable for     climate conditions found in the American Horticulture Society heat     zone 7. 

The invention claimed is:
 1. A new and distinct variety of rose plant of the compact floribunda rose class named ‘Poulcas033’, substantially as illustrated and described herein, due to its abundant yellow flowers, disease resistance, and extended period of bloom. 